Hi Dmitry,
C-reduce isn't directly using TMP or TMPDIR. Rather, it looks like
Perl's File::Temp module is using these to decide where to create
temporary directories.
Anyway, I can't think of a great way to avoid using temporary space. Can
you try disabling the tmp-on-tmpfs feature or else point TMPDIR to a
different directory that has more free space?
http://fedoraproject.org/wiki/Features/tmp-on-tmpfs
Thanks,
John
On 05/25/2013 04:37 AM, Дмитрий Дьяченко wrote:
John, i found why run_tests FAIL for me.
(under bash) if environment variable TMP or TMPDIR is set, then
run_tests script FAIL.
I not check other shells.
I not check that run_tests PASS.
Only i check successful run_tests start (see below).
I tried adopt code from creduce-script for run_tests script but fail.
It's not surprising because of i know nothing about perl :)
Alas, unavailable TMP/TMPDIR may be serious limitation to run tests
(for new Fedora at least).
New Fedoras ships with /tmp mounted to tmpfs, i.e. into memory.
For me free space available in /tmp is under 1Gb.
Thanks,
Dmitry
2013/5/20 John Regehr <[email protected]>:
Dmitry, I'll be interested to know the cause when you discover it.
It might be worth creating a bit of a FAQ about this problem.
One cause I've seen is ASLR, which needs to be turned off.
Of course any threaded code will be non-deterministic, or thread that
executes non-trivial system calls.
John
On 5/19/13 5:18 PM, Дмитрий Дьяченко wrote:
Thank John,
hence my fault. i'll try investigate it.
Dmitry
2013/5/20 John Regehr <[email protected]>:
Hi Dmitry,
As far as I can tell, none of the recent commits should make a difference
for the sanity checks!
John
On 5/19/13 6:03 AM, Дмитрий Дьяченко wrote:
John, was your last commit expected to solve sanity checks failures in
tests?
They appears for me sometimes between early April -- early May 2013.
Sounds like perl-code is responsible for fails...
Dmitry
creduce-trunk-today + clang-trunk-today, Fedora 19 x86_x64, perl 5.16.3
------------------ tests' run log ------------
~/build/creduce/tests]$ ./run_tests
===== running test 0 in /home/dimhen/build/creduce/tests/tmp_test0_VevUr
=====
===< 25866 >===
running 4 interestingness test(s) in parallel
test (and sanity check) fails at ../../creduce/creduce line 150.
cannot remove path when cwd is /tmp/creduce-46BTN3 for
/tmp/creduce-46BTN3: at /usr/share/perl5/File/Temp.pm line 902.
[...]
2013/5/17 John Regehr <[email protected]>:
Ok, I just committed a change that deletes temp dirs more aggressively
(after each pass) and I don't think it adds any races.
John
On 05/16/2013 03:05 AM, Konstantin Tokarev wrote:
16.05.2013, 12:51, "Paulo Matos" <[email protected]>:
That seems to be an ideal solution.
Do we have any rough idea of how much space a long reduction can
take?
Are we talking of Mbs or Gbs?
I've used test script which produced executable files (and relied on
creduce
to clean up all temporary directories). After 10-15 reduction cycles
it
has eaten about ~60 Gbs.
